on 06-09-2024
Instituto de Telecomunicações will host two IEEE distinguished keynote speakers' sessions on September 6, 2024, at Torre Norte, at Instituto Superior Técnico.
The speakers are (Lecture 1) Karu Esselle, FRSN, FIEEE, FIEAust, Distinguished Professor in Electromagnetic and Antenna Engineering at the University of Technology Sydney, and (Lecture 2) Pai-Yen Chen, Professor and University of Illinois Scholar in the Department of Electrical and Computer Engineering at the University of Illinois Chicago (UIC).
Lecture 1 (APS Distinguished Lecture):
No other antenna concept has more names. At present these antennas are known as Fabry-Perot resonant cavity antennas, just Resonant Cavity Antennas (RCA), Partial Reflector Surface (PRS) based antennas, Electromagnetic Band Gap (EBG) Resonator antennas (ERAs), and Two-Dimensional Leaky-Wave Antennas, and more names are forthcoming. Yet they all have more or less the same configuration consisting of a resonant cavity, formed between a partially reflecting superstructure and a fully reflecting (ground) plane. The resonant cavity is excited by a small feed antenna. Hence, this presentation refers to them as resonant cavity antennas (RCAs). The RCA concept is one of the main beneficiaries of the surge of research on electromagnetic periodic structures in the last decade, inspired by EBG and then to some extent by metamaterials. RCAs have already replaced other types of antennas, for example as feeds for reflectors. This presentation will take the audience through the historical achievements of RCA technology.
Lecture 2:
With the rapid advent of sensors and actuators and the ever-advancing wireless technologies, the idea of internet-of-things (IoTs) has had a revolutionary impact on ubiquitous computing with massive amounts of data from the 5G/B5G-connected smart objects. This new paradigm has become the driving force for many new technologies, such as smart cities, telemedicine, telediagnosis, and point-of-care testing (POCT). This talk will give an overview of our recent progress on micro/nanotechnology-driven wireless sensors and integrated systems. The first part of this talk will discuss low-noise, batteryless, and wireless harmonic/intermodulation sensors for physical and (bio-)chemical sensing, as well as ultra-compact harmonic biosensors based on chemically-reconfigurable frequency modulators built using nanomaterial-based RF circuits. In addition, wearable antennas based on lightweight and stretchable nanocomposite materials will be discussed, along with their applications in wearable electronics and smart skins. The second part of this talk will discuss how the concepts of “PT-symmetry” originating from quantum mechanics and “time crystal” can be implemented using RF circuits and applied to enhance the sensitivity and resolvability of wireless micro/nano-sensors, with some in-vivo demonstrations. The final part of this talk will showcase nanomaterial-based RF/analog circuits that leverage the intrinsically high entropy to generate electromagnetically unclonable function (EMUF)-based cryptographic keys for identifying and securing resource-scarce wireless sensors, RFID tags, and IoTs.